YouTip

## 404 NOT FOUND! Sorry, the article you need was not found!! The 404 page is an essential page for a website. It bears the heavy responsibility of user experience and SEO optimization. The 404 page is typically the 404 error returned by the server when a user accesses a page that does not exist or has been deleted on the website. If the webmaster does not set up a 404 page, there will be dead links, and when spiders crawl such URLs, it is not conducive to search engine indexing. ## Origin of 404 Not Found It is said that before the third technological revolution, the form of the Internet was a large central database, which was located in room 404. At that time, all requests were handled manually by humans. If the database did not contain the file requested, or if the requester wrote the wrong file number, the user would receive a return message: room 404: file not found. Later, when the Internet emerged, people became accustomed to using 404 as the error code for files not found on the server. Of course, in reality, the legendary room 404 does not exist. ## Two Major Benefits of Setting Up a 404 Page * Guide users back to normal navigation